systemd.targets.<name>.after

If the specified units are started at the same time as this unit, delay this unit until they have started.

Type
list of string matching the pattern [a-zA-Z0-9@%:_.\-]+[.](service|socket|device|mount|automount|swap|target|path|timer|scope|slice)
Default
[ ]
Declared
<nixpkgs/nixos/modules/system/boot/systemd.nix>